Entanglement preparation using symmetric multiports

T. Brougham, V. Košták, I. Jex, E. Andersson, T. Kiss

Research output: Contribution to journalArticle

Abstract

We investigate the entanglement produced by a multi-path interferometer that is composed of two symmetric multiports, with phase shifts applied to the output of the first multiport. Particular attention is paid to the case when we have a single photon entering the interferometer. For this situation we derive a simple condition that characterizes the types of entanglement that one can generate. We then show how one can use the results from the single-photon case to determine what kinds of multi-photon entangled states one can prepare using the interferometer. © 2010 EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg.

Original languageEnglish
Pages (from-to)231-236
Number of pages6
JournalEuropean Physical Journal D
Volume61
Issue number1
DOIs
Publication statusPublished - Jan 2011

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